But Day (Buddha peak)
A peak at the northeast gate of Lan Ha Bay, boats entering and leaving Lan Ha Bay from the Northeast all pass through this gate, with the shape of the Buddha appearing to bless the means of ancient fishermen.
Day in and out to fish and shrimp in the waters around Cat Ba archipelago. The Buddha epiphany blesses seafarers with a warm and full life, so the folk name it according to the spiritual meaning and shape as "But Day island".
